Dwolla/arbalest

Arbalest is a legacy utility library that has been effectively orphaned, with zero velocity and a very low star count relative to its decade-long age. While it likely served a critical internal role at Dwolla for Redshift ETL in the mid-2010s, it lacks a modern competitive moat. The project is rendered largely obsolete by the evolution of the AWS ecosystem; AWS Glue and Redshift Spectrum now handle these workflows natively with much higher scale and lower maintenance. In the open-source world, Apache Airflow (with its robust S3ToRedshiftOperator) and dbt have become the industry standards for this type of orchestration. The 'displacement horizon' is set to 6 months not because a new competitor is coming, but because any modern team starting a project today would select a standard industry tool over a 10-year-old niche library. Its defensibility is minimal, acting more as a historical reference implementation than a viable modern framework.